Single lever control for multiple actions



May 28, 1963 F. s. PAYERLE ETAL 3,091,130

SINGLE LEVER CONTROL FOR MULTIPLE ACTIONS 7 Sheets-Sheet 1 Filed June27. 1960 INVENTORS FRANK S. PAYERLE 8| YCHARLES E GRESSARD yc'b HafizATTORNEYS May 28, 1963 F. s. PAYERLE ETAL 3,091,130

SINGLE LEVER CONTROL FOR MULTIPLE ACTIONS Filed June 27. 1960 7Sheets-Sheet 2 FIG. 2

INVENTORS FRANK S. PAYERLE 8 CHARLES F. G SSARD ATTORNEYS y 1963 F. s.PAYERLE ETAL 3,091,130

SINGLE LEVER CONTROL FOR MULTIPLE ACTIONS Filed June 27. 1960 FIG. 3 s9'7 Sheets-Sheet 3 FIG. 4

22 1 INVENTORS 5 \le FRANK s.

PAYERLE 8: 24 l8 l9 [6 2| CHARLES F. cm: SARD BY Mk ATTORNEYS May 28,1963 F. s. PAYERLE ETAL 3,091,130

SINGLE LEVER CONTROL FOR MULTIPLE ACTIONS 7 Sheets-Sheet 4 Filed June27. 1960 INVENTORS FRANK s. PAYERLE a BYCHARLES F. c sisssmo with? 1ATTORNEYS y 1963 F. s. PAYERLE ETAL 3,091,130

SINGLE LEVER CONTROL FOR MULTIPLE ACTIONS Filed June 27. 1960 7Sheets-Sheet 5 INVENTORS FRANK S. PAYERLE 8| CHARLES F. GRESSARDATTORNEYS May 28, 1963 F. s. PAYERLE ETAL 3,091,130

SINGLE LEVER CONTROL FOR MULTIPLE ACTIONS Filed June 27. 1960 7Sheets-Sheet 6 INVENTORS FRANK S. PAYERLE a CHARLES F. GRESSARDATTORNEYS y 1963 F. s. PAYERLE ETAL 3,091,130

SINGLE LEVER CONTROL FOR MULTIPLE ACTIONS Filed June 27. 1960 7Sheets-Sheet 7 INVENTORS FRANK S. PAYERLE 8| CHARLES F. GRESSARDATTORNEYS United States Patent 3,091,130 SINGLE LEVER CONTRGL FORMULTIPLE ACTIONS Frank S. Payerle, Akron, and Charles F. Gressard, Kent,Ohio, assignors to The Morse Instrument ('10., Hudson, Ohio, acorporation of Ohio.

Filed lune 27, 1960, Ser. No. 38,926 16 Claims. (Cl. 74-471) The presentinvention relates to single lever control mechanisms.

More particularly, the present invention relates to a single levercontrol mechanism whereby the movement of a single lever can selectivelycontrol multiple actions or movements.

Specifically, the present invention relates to a single lever controlmechanism whereby the movement of a single lever can selectively controltwo remote servient mechanisms either singularly, simultaneously or in amultiplicity of combinations involving varying degrees of control orsequential control.

A variety of known control devices provide control for dual servientmechanisms by the operation of a single lever through intermittentgearing arrangements or linear displacement of the control lever as itis oscillatably moved in a fixed plane. Complete selective control ofthe servient mechanisms with respect to direction and magnitude isimpossible with such control devices, because the interaction of the twoservient mechanisms so controlled is restricted by the planar of theindividual control device.

The known single lever control devices in which the control lever is notlimited to planar movement have been limited to arrangements whereby thecontrol cables are attached directly to the conrol lever. Thedisplacement of the control lever is relied upon directly to effect therequired movement of the control cables. In such devices the lateraldisplacement of the cables inherently causes binding or frictionalresistance thereon, and, therefore, limits the application of saiddevices. Moreover, complete selective control of the cables isinefficient, because movement of the control lever in any directioninherently results in movement of all the cables to some extent.

It is therefore the principal object of the present invention to providean improved single lever control mechanism for providing multipleactions.

It is a further object of the present invention to provide an improvedsingle lever control mechanism in which selective movement of thecontrol lever effects efficient individual control of the servientmechanisms both as to direction and magnitude.

It isa still further object of the present invention to provide animproved single lever control mechanism which is simple, strong andcompact in construction.

It is a still further object of the present invention to provide animproved single lever control mechanism which is substantially universalin application without causing binding or frictional resistance.

These and other objects of the present invention, as well as theadvantages thereof over the prior art, will be apparent in view of thefollowing description and the attached drawings. A preferred embodimentis shown by way of example in the accompanying drawings and described indetail herein. Various modifications and changes in details ofconstruction are comprehended within the scope of the present inventionas defined by the appended claims.

The invention comprises two parallel pairs of shafts at right angles toeach other, having sprockets at both ends driving chains and journaledin a rectangular frame, opposite chains being connected by control rodsat right "ice angles to each other passing slidably through a singlelever control element, and one of each pair of opposite chain drivemechanisms being operatively connected to motion transmitting means.

Referring to the drawings:

FIG. 1 is a schematic perspective view of a preferred embodiment of thepresent invention showing the control lever in neutral position;

FIG. 2 is a side elevation thereof;

FIG. 3 is a plan View partially cut away taken substantially on line 33as shown in FIG. 2;

FIG. 4 is a cross sectional view taken substantially on line 4-4 in FIG.3;

FIG. 5 is a schematic perspective similar to that shown in FIG. 1 withthe control lever moved along one control axis;

FIG. 6 is a schematic perspective similar to that shown in FIG. 1 withthe control lever moved along the control axis normal to that shown inFIG. 5;

FIG. 7 is a schematic perspective similar to that shown in FIG. 1 withthe control lever moved to a position diagonally of the frame along bothcontrol axes;

FIG. 8 is a schematic perspective similar to that shown in FIG. 1 withthe control lever moved to another of the countless positions possibleby movement along both control axes.

'In the preferred embodiment of the invention, a closed chain is mountedaround the two sprockets at one end of each pair of shafts, and an openchain engages the two sprockets at the other end of each pair of shafts.The free ends of each open chain are connected to the control cables ofthe servient mechanisms.

The control rods, which are always perpendicular to each other, areslidably interconnected through a slide socket which is operated by theswivel pivoted control lever. That is, the cross over point of the twocontrol rods always lies within the slide-socket, although the positionof the slide-socket itself may be changed. The ends of each control roddn'vingly engage the chains on the opposite ends of one pair of parallelshafts.

Because of this configuration, movement of the control lever so as toslide the slide-socket along the axis of one control rod causes theother control rod to be carried laterally with the slide-socket. Thelateral movement of the control rod advances or retracts the chains towhich it is attached over the sprockets, correspondingly displacing thecontrol cables to one of the servient mechanisms.

Reverse movement of the control lever reverses the displacement of thecontrol cables, causing the servient mechanism to return to its neutralposition or beyond, if desired. Lateral movement of the control leveralong the axis of the other control rod will cause similar directionaldisplacement of the control cables to the second servient mechanism.

It is apparent that the displacement of the control cables is a directlinear function of the displacement of the control lever and that thedirection of the displace ment corresponds to the direction of thedisplacement of the control lever. Therefore, diagonal movement of thecontrol lever will cause co-ordinate movement of the control cablesleading to the two servient mechanisms, correspondingly moving theslide-socket to a position diagonally from its neutral position. Themagnitude and direction of the translation of the cross-over point ofthe control rods from the neutral position to its new position isdeterminative of the magnitude and direction of the displacement of thecontrol cables.

Accomplishing the translation of the cross-over by sliding the controlrods through the slide-socket as it is positioned enables the controlrods always to remain perpendicular to the shafts and be connected tothe shafts through the chains at the ends thereof. This provides aninherently stable mechanism which can be sturdily constructed to operatewithout binding of the control shafts or the driving mechanisms.

The stability of such a control mechanism permits its ready adaptationas a unified control, as, for example, is required for the operation ofdual hydraulic Winches; for selective remote control of the dualfunctional movements of such heavy equipment as cranes, hoists andtracked vehicles; or, for such cooperative control as is required in thecoordination of the engine and steering of boats.

Referring now to FIG. 1, the single lever control mechanism, designatedgenerally by the numeral 10, consists of a preferably square orrectangular frame 11 fixedly mounted in operative position by means notshown. Parallel shafts 12 and 13 are journaled in frame 11, as by ballbearings 14 shown in FIG. 3. Parallel shafts 15 and 16 are similarlyjournaled in frame ll, as by similar bearings 18, and areperpendicularly disposed to shafts 12 and 13. Interference between theperpendicularly disposed pairs of parallel shafts is prevented byplacing shafts 15 and 1 6 beneath shafts 12 and 13, as shown in FIG. 4.

Secured to each of the shafts 12, 13, 15 and 16, preferably outwardly offrame 11, as by Allen screws 17, are sprocket wheels 19 and :20. Thepair of sprockets 19 attached to one end of each shaft 12 and 13 and thepair of sprockets 19 attached to one end of each shaft 15 and 16 engageclosed chains 21 and 22, respectively. The pair of sprockets attached tothe other end of each shaft 12 and 13 and the pair of sprockets 29attached to the other end of each shaft 15 and 16 engage open chains 23and 24, respectively.

The ends of open chain 23 are attached, as by cable clamp 25, to therespective ends of the control cable 26 of a servient mechanism, thecontrol unit of which is schematically represented by sheave 28 withrotational indicator arm 29. Similarly, the ends of open chain 24 areattached, as by cable clamp 30 (FIG. 2), to the respective ends of thecontrol cable 31 of another servient mechanism, the control unit ofwhich is schematically represented by sheave 32 with rotationalindicator arm 33.

Sheave assemblies 34, 35, 36 and 37 schematically represent a remotetransfer mechanism, as, for example, of the type disclosed in US. PatentNo. 2,737,822, which could include an elbow 39, as shown in FIG. 2 anddisclosed in U.S. Patent No. 2,762,606. 7

However, it should be understood that while the preferred embodiment isdisclosed as being applied by cables to a remote transfer system, theinvention is equally adaptable to a linkage system or to an integralapplication with any of the shafts 12, 13, 15 and 16, or any combinationthereof, being directly connected to the servient mechanism.

Control rod 40 extends through elongated bearing slots 41 and 42 inframe 11 to connect to closed chain 21 on one end and open chain 23 onthe other end, as by keying through a bored bar link 43 in chains 21 and23. Control rod 44 is perpendicularly disposed to control rod 40 andsimilarly extends through elongated bearing slots 45 and 46 in frame '11to connect to closed chain 22 on one end and open chain 24 on the, otherend, as by bored bar links 47.

Control rods 40 and 44 are slidably positioned through bores 45' and46', respectively, perpendicular to each other in slide-socket 48 whichthereby establishes the cross-over point 49 of control rods 40 and 44.Helical springs '50'may be placed over control rods 40 and 44 to engagethe frame 11 and slide-socket 48 so as to yieldably urge slide-socket 48to neutral position medially of the sides of frame 11. By centrallylocating the neutral cross-over point 49, the optimum directionalcontrol is realized from the control device 10. However, the neutralcross-over point 49 may be displaced from the central location ininstallations where some directional control may be relinquished for anincrease in displacement. Selection of the neutral cross-over point forvarious requirements will be within the purview of one skilled in theart in view of the operational description hereinafter included.

Furthermore, it may be desirable to mechanically locate the neutralcross-over point 49 by supplying a spring loaded detent 52 inslide-socket 48 to engage a depression 53 on the surface of control rod'44 when the slide-socket 48 is in the neutral position. A detent 52would similarly engage depression 53' on control rod 40.

A vertical bore 54 perpendicular to bores 45 and 46 defines an elongatedsocket in slide-socket 48 to accommodate ball 55 on the lower end ofcontrol lever 56. Control lever 56 is preferably secured in a swivelpivot 58 which is shown mounted above frame 11 as by a plurality ofsupport members 59 extending therefrom.

Operation Establishing the central positioning of the cross-over point49 as the neutral position of the control device, as

in FIGS. 1-4, the indicator arms 29 and 33 on schematic sheaves 28 and32, respectively, are shown positioned vertically.

Referring now to FIG. 5, the control lever 56 is moved in the axialplane of control rod 40 so that the slidesocket 48 is slid axially alongcontrol rod 40. Since control lever 56 is secured in swivel pivot 58,ball 55 will travel along an arcuate path while moving slide-socket 48axially along control rod 40. The bore 54 in slidesocket 48 permits ball55 to slide upwardly in its thus defined elongated socket and therebyaccommodate the 7 vertical component of the motion of ball 55 whilefully V tated in the axial plane of control rod 44 so that slide-vutilizing the horizontal component.

When slide-socket 48 is moved axially of control rod 40, perpendicularlydisposed control rod 44 is moved laterally from its neutral location,thus simultaneously driving chains 22 and 24 which engage sprockets 19and 20, respectively. The movement of open chain 24 displaces controlcable 31 to rotate sheave 32 clockwise from its neutral position asindicated by the rotational displacement of arm 33. Had the slide-socket48 been moved in a reverse direction along control rod 41), thedirection of the displacement of cable 31 would also have been reversedand arm 33 would have been moved to the position 33, shown in phantom.Furthermore, the magnitude of the displacement at the servient mechanismis directly proportionate to the magnitude of the movement of thecontrol lever 56.

It should now be readily apparent that by engaging the one end of thecontrol rod with a closed chain the control rod is stabilized and theforce required to dis-,

place the control cables to which the open chain is connected will noteflect an unbalanced movement or binding action between the connectionof the control rod to the open chain and the slide-socket.

Referring now to FIG. 6, this control lever 56 is rosocket 48 is slidaxially along control rod 44. This causes control rod 40 to belaterally'displaced from its neutral position, thus simultaneouslydriving chains 21 and 23. This movement of open chain 23 displacescontrol cable 26 to rotate sheave 28 clockwise from its neutral positionas indicated by the rotational displacement of arm 29. Had theslide-socket been moved in a reverse direction along control rod 44, thedirection of the displacement of cable 26 would also have been reversedand arm 29 would have been rotated to the position 29', shown inphantom.

Referring now to FIG. 7, the control lever 56 is moved so that theslide-socket 48 is moved diagonally of the frame 11 to a position towardthe observer. That is, the cross-over point has been displaced along theaxes of both control rods rather than along the axis of one control rodWhile remaining fixed with respect to the other,

as shown in FIGS. 5 and 6, so that in this position the cross-over pointhas in effect been translated into one of four quadrants defined by theneutral positions of the control rods. The sliding connection betweenslide-socket 48 and control rods 40 and 44 allows them both to belaterally displaced. The lateral displacement of each control rod isequal in magnitude to its perpendicular coordinate definition of thetranslation of the cross-over point.

When the slide-socket is moved from its centrally located neutralposition directly to the position shown in FIG. 7, control rods 40 and44 are simultaneously displaced from their neutral position to the FIG.7 position and thereby simultaneously drive their respectively connectedchains 21 and 23- and 22 and 24.

The driving of open chain 23 as control rod 40 is laterally slid in thisdirection displaces cable 26 to rotate sheave 28 clockwise as indicatedby the rotational displacement of arm 29. Also, the driving of openchain 24 as control rod 44 is laterally slid in this direction displacescable 31 to rotate sheave 32 clockwise as indicated by the rotationaldisplacement of arm 33.

Of course, the two sheaves 28 and 32 need not have been movedconcurrently to this position, but may have been moved consecutively orby steps by having moved slide-socket 48 along the axis of one controlrod and then the other to arrive at the translated position shown inFIG. 7. Nor need the magnitude of the rotation of the two sheaves 28 and32 be equal, but may be varied by the operation of the control lever 56to selectively displace the proper control rod an amount equal to themagnitude of rotation desired. Had the control lever 56 been moved in areverse direction to place the slide-socket 48 in the quadrant furthestaway from the observeri.e., the opposite quadrantthe direction of thedisplacement of cables 26 and 31 would also have been reversed and arms29 and 33 would have been rotated to the positions 29' and 33, shown inphantom.

Referring now to FIG. 8, the control lever 56 has been moved so thatslide-socket 48 is in the adjacent quadrant to that of FIG. 7. In thisposition the control rod 44 has been laterally displaced in the samedirection as in FIG. 7 so that sheave 32 is again found to have beenrotated in a clockwise direction, as indicated by the rotationaldisplacement of arm 33. However, the lateral displacement of control rod40 has been reversed from that shown in FIG. 7 so that the sheave 28 hasbeen rotated counterclockwise, as indicated by the rotationaldisplacement of arm 29. Similarly, had the control lever been moved in areverse direction to place the slide-socket 48 in the opopsite quadrant,the rotation of the sheaves 28 and 32 would also have been reversed, asshown by the rotational displacement of arms 29 and 33 to positions 29and 33, shown in phantom.

The versatility of the control and its adaptability to a variety ofcontrol applications should now be readily apparent.

It must be noted that while a preferred embodiment of the control wasshown to cause rotation in the schematic depiction of the servientmechanism, this function was chosen because it permitted presentation ofthe flexibility of the control with extreme visual clarity. It shouldalso be apparent that the control may be adapted to swing, push or pullremote mechanisms either directly or by suitable linkage arrangementsknown to the art.

What is claimed is:

1. A single lever control mechanism for multiple actions, comprising, aframe, parallel pairs of shafts rotatably mounted in said frameperpendicularly to each other, control rods perpendicular to each otherlaterally movable in said frame, means interconnecting each control rodto a pair of said parallel shafts, said means adapted to rotate saidpairs of shafts and maintain each said control rod parallel to itsinterconnected shafts, single lever means selectively to displace saidcontrol rods, and servient control means operatively connected with saidshafts.

2. A single lever control mechanism for multiple actions, comprising, aframe, parallel pairs of shafts rotatably mounted in said frameperpendicularly to each other, control rods perpendicular to each otherlaterally movable in said frame, means interconnecting each control rodto a pair of said parallel shafts, said means adapted to rotate saidpairs of shafts and maintain each said control rod parallel to itsinterconnected shafts, single lever means selectively to displace saidcontrol rods either singularly, concurrently or consecutively, andservient control means operatively connected with said shafts.

3. A single lever control mechanism for multiple actions, comprising, aframe, parallel pairs of shafts rotatably mounted in said frameperpendicularly to each other, control rods perpendicular to each otherlaterally movable in said frame, means interconnecting each control rodto a pair of said parallel shafts, said means adapted to rotate saidpairs of shafts and maintain each said control rod parallel to itsinterconnected shafts, single lever socket means slidably engaging saidcontrol rods adapted to laterally displace said control rods eithersingularly or concurrently, and servient control means associated withsaid shafts.

4. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicularly mounted with respect to eachother, the shafts in each pair rotatably connected, control rodslaterally slidable in said frame, said control rods perpendicularlydisposed to each other and each adapted to rotate one pair of shafts byits lateral displacement, a slide-socket engaging said control rods,said slide-socket adapted to slide axially along said control rodssingularly or concurrently, means selectively to slide said slidesocket,and servient control means associated with said shafts.

5. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicularly mounted with respect to eachother, the shafts in each pair rotatably connected, control rodslaterally slidable in said frame, said control rods perpendicularlydisposed to each other and each adapted to rotate one pair of shafts byits lateral displacement, a slidesocket engaging said control rods, saidslide-socket adapted to slide axially along said control rods singularlyor concurrently, means selectively to slide said slide-socket, meansyieldingly to urge said slide-socket to a predetermined position, andservient control means associated with said shafts.

6. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicularly mounted with respect to eachother, the shafts in each pair rotatably connected, control rodslaterally slidable in said frame, said control rods perpendicularlydisposed to each other and each adapted to rotate one pair of shafts byits lateral displacement, a slide-socket engaging said control rods,said slide-socket adapted to slide axially along said control rodssingularly or concurrently, a swingingly pivoted control lever adaptedselectively to slide said slide-socket, and servient control meansasscoiated with said shafts.

7. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicularly mounted with respect to eachother, the shafts in each pair rotatably connected, control rodslaterally slidable in said frame, said control rods perpendiculmlydisposed to each other and each adapted to rotate one pair of shafts byits lateral displacement, a slidesocket, perpendicular crossed bores insaid slide-socket, each of said bores'slidingly receiving one of saidcontrol rods, means selectively to slide said slide-socket along saidcontrol rods singularly or concurrently, and servient control meansassociated with said shafts.

8. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicularly mounted with respect to eachother, the shafts in each pair rotatably connected, control rodslaterally slidable in said frame, said control rods perpendicularlydisposed to each other and each adapted to rotate one pair of shafts byits lateral displacement, a slidesocket, perpendicular crossed bores insaid slide-socket, each of said bores slidingly receiving one of saidcontrol rods, a swingingly pivoted control lever adapted selectively toslide said slide-socket along said control rods singularly orconcurrently, and servient control means associated with said shafts.

9. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicularly mounted with respect to eachother, the shafts in each pair rotatably connected, control rodslaterally slidable in said frame, said control rods perpendicularlydisposed to each other and each adapted to rotate one pair of shafts byits lateral displacement, a slide-socket, perpendicular bores in saidslide-socket, each of said bores slidingly receiving one of said controlrods, 2. swingingly pivoted control lever adapted selectively to slidesaid slide-socket along said control rods singularly or concurrently,means yieldingly to urge said slide-socket to a predetermined position,and servient control means associated with said shafts.

10. A single lever control mechanism for multiple actions, comprising,la. rectangular frame, parallel pairs of shafts rotatably mounted insaid frame, said pairs of shafts perpendicular to each other, dual meansfor rotatably connecting each pair of shafts, said means displaced fromeach other axially of said shafts, control rods laterally slidable insaid frame, each of said control rods parallel to one pair of shafts,each of said control rods engaging the rotatable connecting means ofsaid pair of shafts which it parallels, a slide-socket, perpendicularcrossed bores in said slide-socket, each of said bores slidinglyreceiving one of said control rods medially of said shaft connectingmeans, means selectively to slide said slide-socket along said controlrods singularly or concurrently, and servient control means associatedwith said shafts.

11. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicular to each other, dual means forrotatably connecting each pair of shafts, said means displaced from eachother axially of said shafts, control rods laterally slidahle in saidframe, each of said control rods parallel to one pair of shafts, each ofsaid control rods engaging the rotatable connecting means of said pairof shafts which it parallels, a slide-socket, perpendicular crossedbores in said slide-socket, each of said bores slidingly receiving oneof said control rods medially of said shaft connecting means, aswingingly pivoted control lever adapted selectively to slide saidslide-socket along said control rods singularly or concurrently, andservient control means associated with said shafts.

12. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shafts perpendicular to each other, dual means forrotatably connecting each pair of shafts, said means displaced from eachother axially of said shafts, control rods laterally slidable in saidframe, each of said control rods parallel to one pair of shafts, each ofsaid control rods engag ng the rotatable connecting means of said pairof shafts which it parallels, a slide-socket, perpendicularly crossedhores in said slide-socket, each of said bores slidingly receiv ng oneof said control rods medially of said shaft connecting means, aswingingly pivoted control lever adapted selectively to slide saidslide-socket along said control rods singularly or concurrently, meansyieldingly to urgesaid slide-socket to a predetermined position, andservient control means associated with said shafts.

13. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted throughsaid frame, said pairs of shafts perpendicular to each other, means forrotatably connecting each pair of shafts attached to both ends of eachshaft exteriorly of said frame, control rods laterally slidable in saidframe, each of said control rods parallel to one pair of shafts, each ofsaid control rods engaging the rotatable connecting means of said pairof shafts which it parallels, a slide-socket, perpendicular crossedbores in said slide-socket, each of said bores slidingly receiving oneof said control rods medially of said frame, a swing ingly pivotedcontrol lever adapted selectively to slide said slide-socket along saidcontrol rods singularly or concurrently, means yieldingly to urge saidslide-socket to a predetermined position, and servient control meansassociated with said shafts.

14. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted throughsaid frame, said pairs of shafts perpendicular to each other, sprocketsattached to both ends of each shaft exteriorl'y of said frame, chain-sdrivingly engaging the sprockets on each end of the pairs of parallelshafts, control rods laterally slidable in said frame, each of saidcontrol rods parallel to one pair of shafts, each control rod engagingthe chains drivingly associated with that pair of shafts parallel tosaid control rod, 2. slidc-socket, perpendicular crossed bores in saidslide-socket, each of said bores slidingly receiving one of said controlrods medially the engagement of the control rod to its driving chains,21 swingingly pivoted control lever adapted selectively to slide saidslide-socket along said control rods singularly or concurrently, andservient control means associated with said shafts.

15. A single lever control mechanism for multiple actions, comprising, arectangular frame, parallel pairs of shafts rotatably mounted in saidframe, said pairs of shaft-s perpendicular to each other, sprocketsattached to both ends of each shaft exteriorly of said frame, closedchains drivingly engaging the sprockets on one end of each pair ofshafts, open chains drivingly engaging the sprockets on the other end ofeach pair of shafts, control rods laterally slidable in said frame, eachof said control'rods parallel to one pair of shafts, each control rodengaging the chains drivin'gly associated with that pair of shaftsparallel .to said control rod, a slide-socket, perpendicular crossedbores in said slide-socket, each of said bores slidingly receiving oneof said control rods medially of said frame, an elongated socket in saidslide-socket, a swingingly pivoted control lever, a ball on the end ofsaid lever received in said elongated socket so that selective rotationof said control lever slides said slide-socket along said control rodssingularly or concurrently, and servient control means attached to theends of said open chains.

16. A control of the character described in claim 15 with spring meansyieldingly to urge said slide-socket to a predetermined position.

References Cited in the file of this patent UNITED STATES PATENTS

1. A SINGLE LEVER CONTROL MECHANISM FOR MULTIPLE ACTIONS, COMPRISING, AFRAME, PARALLEL PAIRS OF SHAFTS ROTATABLY MOUNTED IN SAID FRAMEPERPENDICULARLY TO EACH OTHER, CONTROL RODS PERPENDICULAR TO EACH OTHERLATERALLY MOVABLE IN SAID FRAME, MEANS INTERCONNECTING EACH CONTROL RODTO A PAIR OF SAID PARALLEL SHAFTS, SAID MEANS ADAPTED TO ROTATE SAIDPAIRS OF SHAFTS AND MAINTAIN EACH OF SAID CONTROL ROD PARALLEL TO ITSINTERCONNECTED SHAFTS, SINGLE LEVER MEANS SELECTIVELY TO DISPLACE SAIDCONTROL RODS, AND SERVIENT CONTROL MEANS OPERATIVELY CONNECTED WITH SAIDSHAFTS.